Re: [Xen-devel] [PATCH 0/8] Domain Groups: Introduction

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 20/2/07 23:01, "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> wrote:

>> I think we need to decide whether the benefits of supporting this
> concept
>> down to the hypervisor make it worth adding significant extra
> management
>> code at ring 0.
> 
> It's certainly useful to be able to pause groups of domains e.g. when
> debugging cluster filesystems etc.

That doesn't require Xen to be aware of the groups. If the domains need to
be paused as instantaneously as possible then a multicall of domctls may
well suffice.

There may be a more compelling argument for groups as a security
abstraction, but I think we need to stand back and work out the overall
story there with XSM and all.

 -- Keir



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